• 제목/요약/키워드: Growth characters

검색결과 648건 처리시간 0.024초

재래종 옥수수 수집종에 대한 특성조사 (III) (III. Plant Characters of Korean Indigenous Corn Lines)

  • 이인섭;최봉호
    • 한국작물학회지
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    • 제24권1호
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    • pp.92-98
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    • 1979
  • Korean local corn lines from various regions in the country were studied for the plant characters such as flowering days. plant height. growth rate. number of ears per plant. leaf size. brace roots and tillers. All the lines without exception were different in plant characters studied and the difference were also apparent among regions from where the original lines were obtained. The variation among lines and original regions indicated that the plant characters were quite dependent upon the magnitude of traditional cultural practices and other environmental factors such as precipitation or cropping systems in regions concerned.

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초다 근류착생 돌연변이체 콩의 뿌리혹 형성 및 초기생육 (Nodulation and Early Growth of Supernodulating Mutants in Soybean)

  • 이석하;이홍석
    • 한국작물학회지
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    • 제37권1호
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    • pp.16-21
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    • 1992
  • 초다 근류착생성 콩 nts 382 및 nts 246와 wild-type인 Bragg의 초기생육, 뿌리혹 형성 및 질소고정능력을 조사하였으며, 그 결과는 다음과 같이 요약된다. 1. nts 계통은 뿌리혹건물중이 현저히 높아서 파종후 31일째에는 Bragg에 비하여 2.5내지 3.5배에 달하였다. 2. nts 계통은 과도한 뿌리혹 형성 때문에 지상부 광합성산물을 많이 소모하여 지상부의 생육이 저해되었다.

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논 재배 시 한국 콩 품종의 수량성 관련요인분석에 의한 품종군 분류 (Cluster Analysis of Korean Domestic Soybeans based on Yields Characters in Paddly Field Cultivation)

  • 조준형;김용욱
    • 한국유기농업학회지
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    • 제13권1호
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    • pp.101-112
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    • 2005
  • In order to select the suitable soybean cultivars for paddly field cultivation, growth response and yields characters were investigated with 37 Korean domestic soybean cultivars, in Yeoncheon, Gyeonggi province. The results can be summarized as follows ; When the soybeans were cultivated in paddy field, significant differences were observed in growth responses at each growth stage and yields among the cultivars. Yields of six cultivars, such as Danbaekkong, Paldokong, Pungsannanulkong, Myeongjunamulkong, Saeolkong, and Namhaekong, were less than 200kg/10a, however, seven cultivars, such as Shinpaldalkong 2, Sohokong, Dormikong, keumkangkong, Bukangkong, Dajangkong, and Geomjeongkong 2, showed highest yields ranged from 301~385kg/10a. At V5 stage, highly positive correlation(r=091$^{{\ast}{\ast}}$) was observed between the top dry weight and leaf area while negative correlation was existed between T/R ratio and root dry weight. However, at R2 age, leaf area was correlated with both top and root dry weight while T/R ratio was correlated with leaf area and top dry weight. Thirty-seven soybean cultivars used in this experiments were classified into 3 different clusters based on 19 important agronomic characters, and genotypic properties of the cultivars were similar in each cluster. In results, high yields could be achieved by selected cultivation of suitable soybean cultivars such as Shinpaldalkong 2 which showed early maturation date and highly ripening ratio.

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예능프로그램의 부캐릭터 전략 연구 - <놀면 뭐하니?>를 중심으로 - (A Study on the Strategy of Sub-Character in Entertainment Programs )

  • 이의정;이종훈
    • 한국멀티미디어학회논문지
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    • 제24권5호
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    • pp.709-716
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    • 2021
  • The current trend of entertainment programs is an "Sub-character." This study is to find out which strategies were chosen, considering the entertainment program "Hang Out With Yoo" as the beginning and front-runner of craze for Sub-characters. The following results were deduced: implementation of trendy characters, aggressive acceptance of growth narrative and expansion of episodes. The success or failure of an entertainment program depends on the implementation method of differentiated characters. At this point in time when Sub-characters are continuously developed, this program is meaningful in that it has presented the strategies for Sub-characters reflecting the demand of audience.

페튜니아 일대 잡종에서 생육관련 형질의 상호관계 및 조합능력 (Inter-Relationship and Combining Ability of Plant Growth in F1 Hybrids of Petunia hybrida)

  • 송천영;홍규현;강윤규
    • 현장농수산연구지
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    • 제3권1호
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    • pp.85-93
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    • 2001
  • 페튜니아 6개 계통을 이면교배한 F1 15개 조합 및 양친에 대한 엽장, 엽폭, 분지수, 엽수, 엽면적, 생체중 및 건물중 등의 형질에 대하여 상호관계 및 조합능력을 분석하였다. 엽면적과 생체중은 엽장, 엽폭, 분지수 및 엽수 등 모든 형질들과 유의성이 인정되는 정의 상관관계를 보였고 건물중은 엽장, 엽폭 및 생체중과 고도의 정의 상관관계를 보였으나 엽수와 엽장과는 상관관계가 없었다. 조합능력의 분산은 일반조합능력이나 특수조합능력 모두 7가지 형질에서 유의성이 인정되었으며 특수조합능력의 분산구성분이 일반조합능력의 분산구성분 보다 크게 작용하여 이들 형질의 유전에는 비상가적 유전자 작용이 큰 것으로 나타났다. 모본의 일반조합능력에서 D와 G계통은 엽장증가에 대한 효과가 컸으며, C와 D계통은 분지수, 엽수 및 엽면적증가에 대하여 일반조합능력이 컸고, 생체중 및 건물중 증가를 위해서는 C, D와 G계통들이 일반조합능력이 큰 것으로 나타났다. D×E조합, D×G조합 및 E×G조합은 엽장, 엽폭, 분지수, 엽수, 엽면적, 생체중 및 건물중 등의 모든 조사형질에서 특수조합능력 효과가 높았다. 유전력은 7가지 형질 모두 광의의 유전력이 크게 나타났고 엽폭 및 건물중은 광의와 협의의 유전력 모두가 높게 나타났다.

자엽 및 단엽 제거에 따른 White Clover의 유묘기 생장과 형태적 특성 (Seedling Growth and Morphology as Influenced by Removal of Cotyledon and Unifoliolate in White Clover)

  • 강진호;박진서;이희원
    • 한국작물학회지
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    • 제39권5호
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    • pp.480-488
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    • 1994
  • White clover는 기존초지에 도입시 정착이 불량한 것이 단점으로 지적되어 왔다. 본시험은 white clover의 발아직후 자엽 및 단엽제거가 건물생산과 형태적 특성에 미치는 영향을 조사하여 기존초지로 도입되는 white clover의 유묘기 관리에 관한 정보를 제공하고자 잎의 크기가 다른 4개 품종(Regal, La. S-1, Huia, S184)을 자엽기에 1개 또는 2개의 자엽을 제거하거나, 단엽기에 단엽, 단엽과 1개의 자엽 또는 단엽과 2개의 자엽을 모두 제거한 후 8주동안 개체당 건물중과 형태적 형질(엽수, 엽면적, 엽병장, 포복경장 및 분지경수)의 변화와 개체당 건물중과 이들 형질과의 관계를 밝히고자 실시하였던 바, 그 결과를 요약하면 다음과 같다. 1. 무탈엽에 비하여 자엽 및 단엽제거는 clover의 개체당 건물중과 형태적 형질을 현저히 감소시켰다. 2. 건물중과 형태적 형질은 단엽기에 단엽과 자엽 제거에 의하여 더욱 감소되고 자엽제거가 많을수록 감소가 큰 것으로 나타났다. 3. 자엽 및 단엽제거 후 생장기간이 증가함으로써 건물중과 형태적 형질이 증가한다 할지라도 포복경장과 분지경수는 처리 6주후부터 급격히 증가하였다. 4. 건물중, 엽면적 및 엽병장은 대엽종일수록 크나, 포복경장, 분지경수 및 엽수는 소엽종일수록 큰 경향을 보였다. 5. 건물중 증가는 엽면적 증가와 밀접한 관련이 있었으나 자엽기에 자엽제거가 단엽기에 단엽과 자엽제거, 그리고 탈엽이 심할수록 증가율(기울기)감소가 큰 것으로 분석되었다.

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문학을 활용한 드라마의 전략 연구 -드라마 <날씨가 좋으면 찾아가겠어요>(2020)을 중심으로 (A Study of Strategies in Drama Using Literature -Centering on the drama <I will visit you if the weather is nice>(2020))

  • 손미영
    • 문화기술의 융합
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    • 제9권6호
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    • pp.771-777
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    • 2023
  • 본 연구는 드라마 <날씨가 좋으면 찾아가겠어요>(2020)을 통해서 드라마가 문학 작품을 활용하여 드라마의 정서와 서사, 그리고 인물을 효과적으로 제시하는 전략을 살핀다. 이 드라마는 시를 활용하여 인물의 내적 갈등을 효과적으로 보여주어 시청자들로 하여금 인물을 훨씬 더 긴밀하게 이해할 수 있도록 한다. 또한 동화의 서사를 통해 인물들 사이의 관계 변화와 성장의 서사를 보여준다. 한편으로는 회차마다 등장인물의 일기를 스틸컷과 함께 보여주어서 마치 드라마를 시청하는 것이 한 편의 문학 작품을 읽는 것과 같은 서정적인 효과를 불러일으킨다. 이로써 드라마 <날씨가 좋으면 찾아가겠어요>는 문학을 적극적으로 활용하여 시청자들로 하여금 성장과 치유의 서사를 공감하고 자신의 것으로 체험하게 하며, 문학이 지닌 치유의 효과를 입체적으로 형상화한다.

Study on the Corrosive Characters of Carbon Steel in the Marine Splash Zone

  • Zhu, Xiangrong;Han, Bing
    • Corrosion Science and Technology
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    • 제2권1호
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    • pp.26-29
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    • 2003
  • This study determined that the four corrosive characters of carbon steel in the marine splash zone (MSZ) in China's four sea areas. It has a range and a corrosion peak value. The rust in the MSZ plays the role of "depolarizer" in the cathodic process of corrosion. The growth law of the rust layer in MSZ has a character of "annual ring". In addition the reasons causing serious corrosion of carbon steel in the marine splash zone has been discussed in this paper.

Evaluation of Relative Fluoride Toxicity and Its Impact on Growth, Economic Characters and Fecundity of the Silkworm, Bombyx mori L.

  • Ramakrishna, S.;Nath, B.Surendra;Jayaprakash
    • International Journal of Industrial Entomology and Biomaterials
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    • 제8권2호
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    • pp.151-159
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    • 2004
  • A detailed evaluation of relative toxicity of fluoride to die 5th instar larvae of PM and NB$_4$D$_2$ races of silkworm and the effects of lethal, sublethal and prevailing levels of fluoride in groundwater on the growth, economic characters and fecundity of the silkworm, Bombyx mori (Lepidoptera: Bombycidae) were studied. The feeding of mulberry, Morus alba leaves treated with lethal and sublethal doses of fluoride to PM and NB$_4$D$_2$ races of silkworms from the beginning of the 5th instar to the end of the feeding period resulted in significant reduction in growth, single cocoon weight, single shell weight, silk index, average filament length, and fecundity when compared to controls. These manges were more pronounced on exposure to lethal dose than sublethal dose and in general, the changes induced by fluoride were more striking in NB$_4$D$_2$ than PM, indicating the greater resistance of PM to higher fluoride levels. Groundwater quality in sericulturally important villages of Karnataka and Andhra Pradesh States has been studied with special reference to the presence of fluoride. On exposure to dose of prevailing levels in the waters of sericulturally important areas, die changes observed on growth, economic characters and fecundity were slightly lower when compared to controls and the decrease was found to be insignificant (P$\geq$0.05). It was concluded that, though minute dose (4.0 ppm) of fluoride did not have any toxic impact, it is toxic at higher concentrations to silkworms.

Effect of Biofertilizers on Vegetative Growth of Okra

  • Ashrafuzzaman, M.;Nuruzzaman, M.;Islam, M.Zahurul;Islam, M.Rafiqul
    • 한국작물학회지
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    • 제48권2호
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    • pp.73-80
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    • 2003
  • An experiment was carried out at the Field Laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh from March to July, 2001 to investigate the effect of biofertilizers on morpho-physiological characters of okra. The experiment was laid out in a randomized complete block design with four replications. There were nine treatments such as $\textrm{T}_0$ (control), $\textrm{T}_1$ (Azotobacter biofertilizer), $\textrm{T}_2$ (Azospirillum biofertilizer), $\textrm{T}_3$ (Azotobacter+Azospirillum biofertilizers), $\textrm{T}_4$ (Azotobacter+Cowdung 5 ton $\textrm{ha}^{-1}$), $\textrm{T}_5$ (Azospirillum+Cowdung 5 ton $\textrm{ha}^{-1}$), $\textrm{T}_6$(Azotobacter+Azospirillum+Cowdung 5 ton $\textrm{ha}^{-1}$), $\textrm{T}_7$ (Cowdung 5 ton $\textrm{ha}^{-1}$) and $\textrm{T}_8$ (60% Nitrogen). The experimental results revealed that significant variations exist among the treatments regarding morphological characters e.g. plant height, number of leaves/plant, stem base diameter, tap root length, and physiological characters like, root dry weight, leaf area index and crop growth rate. Number of leaves/plant, stem base diameter, root length, root dry weight, leaf area index and crop growth rate were found higher in $\textrm{T}_4$, $\textrm{T}_5$, $\textrm{T}_6$ and $\textrm{T}_8$ than the others. In all the parameters, $\textrm{T}_8$ gave the similar result with biofertilizers in combination with cowdung treatments and $\textrm{T}_7$ showed identical with $\textrm{T}_0$ (control). Biofertilizer treatments had insignificant effect on 1000-seed weight(g). Experimental results mentioned above revealed that morpho-physioligical characters of okra could be modified by the application of biofertilizer+cowdung. However, biofertilizers+Cowdung treatments were comparable to $\textrm{T}_8$(60% Nitrogen) in this study. This suggests that $\textrm{T}_4$ or $\textrm{T}_6$ or $\textrm{T}_5$ were more benificial in environmentally friendly okra cultivation and may be used as an alternative of inorganic nitrogen by saving cost of production and sustaining productivity.